A train is travelling away from you at 120 km/h. The train blows its 400-Hz whistle. Take the speed of sound to be 340 m/s. What frequency do you hear?
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Answer:364 Hz
Explanation: By Doppler's Effect
f = f
Input Values with sign
Vo is velocity of observer
Vs is velocity of source
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Answer:my ans is 364.28 let me know if its not write
Explanation:
Just use doppler effect
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